Penetrometer

Details Penetrometer Penetrometer

1980-04-07

1982-06-01

Myracle, Jerry W.

Measuring and testing

Hardness

By penetrator or indentor

7386238, G01N 300

Patent

active

043321607

ABSTRACT:
A static-dynamic penetrometer consists of a cone tip secured to the end of one or more coupled rods and is attached to the lower end of a conventional drill rig assembly and is applied initially in a manner similar to that of the Standard Penetration Test (ASTM:D 1586). A load cell component containing an internaly gauged strain stud is then installed in series at the drill head so that the total applied load can be read on an electric readout device such as an electric analog load-indicator. The necessary reaction for "quasi-static" or "static" loads is supplied by the drill rig. Skin fraction may be measured statically and quasi-statically by withdrawal procedures and this and point bearing loads may be estimated from the data thus obtained.

REFERENCES:
patent: 1860932 (1932-05-01), Lamb
patent: 2466034 (1949-04-01), Mathews
patent: 3968682 (1976-07-01), Pellissier
patent: 3988923 (1976-11-01), Elmiger et al.
patent: 3999424 (1976-12-01), Pellissier

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